Card connector

1. A card connector mounted on a printed circuit board, comprising: an insulative housing receiving a plurality of terminals; a shield plate assembled on the insulative housing and defining a receiving slot with the insulative housing for receiving a card; an ejector coupled to the insulative housing, the ejector comprising a resilient member and a movable slider connecting with the resilient member, the slider having a triangular plate extending into the receiving slot and being capable of moving along a card inserting direction by the card; and a detecting switch assembled on the insulative housing and having a passive pin and an active pin, the active pin having a resilient curved part projecting into a moving track of the triangular plate, and the curved part being capable of moving by the triangular plate between an upper position where the active pin electrically and mechanically connects with the passive pin and a lower position where the active pin electrically and mechanically disconnects from the passive pin; wherein the insulative housing defines a receiving hole at a distal end thereof, and said active pin of detecting switch is received in the receiving hole, and the passive pin has a cutout overlapped on the receiving hole, and the curved part of active pin moveably projects through the cutout.

2. The card connector as described in claim 1 , wherein the passive pin comprises a rib on a bottom surface thereof, and the curved part of the active pin has an engaging part extending from a distal end thereof and moving between an original position where the active pin engages with the rib of the passive pin and a final position where the active pin is separate from the rib of the passive pin.

3. The card connector as described in claim 1 , wherein the active pin has a same structure with the terminals.

4. The card connector as described in claim 1 , wherein the terminals are arranged in two rows.

5. The card connector as described in claim 1 , wherein the insulative housing has an approximately U-shaped main body, and the terminals and the detecting switch are assembled on the main body.

6. The card connector as described in claim 1 , wherein the triangular plate comprises a horizontal portion and a stopping portion extending from the horizontal portion.

7. The card connector as described in claim 6 , wherein when the card is inserted, the horizontal portion is located between the card and the shield plate.

8. The card connector as described in claim 6 , wherein, when the card is inserted, the stopping portion engages with the card.

9. A card connector comprising: an insulative housing defining a card received cavity with a card insertion opening communicating with an exterior along a front-to-back direction; a plurality of terminals disposed in the housing for engagement with an inserted card; an ejector including: a slider back and forth moveable relative to the housing along said front-to-back direction, said slider defining an engagement section configured to be abut against by an inserted card, and the slider further including a horizontal portion extending from the engagement section to cover partly the inserted card; a spring urging the slider to an outward position for ejecting the inserted card; and a switch device located around a rear end of the housing far from said card insertion opening; wherein said switch device includes a ground contact and a deflectable active contact which can be deflected by the slider when said slider is moved to an inner position so as to activate the switch device.

10. The card connector as claimed in claim 9 , wherein said active contact is deflectable in a vertical direction.

11. The card connector as claimed in claim 9 , wherein said active contact is assembled to the housing upwardly.

12. The card connector as claimed in claim 9 , wherein said ground contact is constantly electrically and mechanically engaged with the active contact when no slider is engaged with the active contact.

13. The card connector as claimed in claim 9 , wherein the active contact is configured to be similar to the terminals.

14. A card connector comprising: an insulative housing defining a card received cavity with a card insertion opening communicating with an exterior along a front-to-back direction; a plurality of terminals disposed in the housing for engagement with an inserted card; an ejector including: a slider back and forth moveable relative to the housing along said front-to-back direction, said slider defining an engagement section configured to be ready to be abut against by an inserted card; a spring urging the slider to an outward position for ejecting the inserted card; and a switch device located around a rear end of the housing far from said card insertion opening; wherein said switch device includes a ground contact and a deflectable active contact which can be deflected by the slider when said slider is moved to an inner position so as to activate the switch device; wherein the engagement section defines an inner vertical engagement face to engage a vertical front edge of the inserted card which extends in a transverse direction and is perpendicular to the front-to-back direction under a condition that the inserted card is fully located behind the engagement section.

15. The card connector as claimed in claim 14 , wherein said active contact is deflectable in a vertical direction.

16. The card connector as claimed in claim 14 , wherein said active contact is assembled to the housing upwardly.

17. The card connector as claimed in claim 14 , wherein said ground contact is constantly electrically and mechanically engaged with the active contact when no slider is engaged with the active contact.

18. The card connector as claimed in claim 14 , wherein the active contact is configured to be similar to the terminals.